
B is P percent of whatFormula for calculating number A when P percent of it is B
For the derivation of this equation using the method of solving problems with percentage
Examples of solving problems: find number A when P percent of it is BExample 1. 40 is 5% of what?
Solution.
Answer: 800. Example 2. 270 women working in the plant. This is 30% of all workers. How many people work at the plant?
Solution.
Answer: 900 people work at the plant. Example 3. How much you need to put on deposit at 10% per annum to a year to make a profit of 1000$.
Solution.
Answer: deposit must be 10,000$.
Percent
Percent Definition. Main information
Decimal to Percent. Percent to Decimal
The method of solving problems with percentage
The most common types of problems with percent:
Find P percent of A
B is P percent of what?
B is what percent of A?
Find the number which is greater (less) than a given number by P percent.
In the study of percent to you also will be helpful: Add the comment 